Schottky Diodes for Efficient Power Supplies
Learn about Schottky diodes, their advantages (fast switching action, high efficiency) and disadvantages (higher leakage current), as well as their applications in switch mode power supplies. Discover why Schottky diodes are preferred for high-frequency applications like boost and buck converters due to their low voltage drop and reduced heat generation compared to regular PN junction diodes.
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Presentation Transcript
SCHOTTKY DIODE GT ECE ACADEMIC LAB SLIDES BY ZACHARY CHAN
OVERVIEW Similar to regular PN junction diodes (only allows current to flow in one direction) Has advantages and disadvantages Very useful for switch mode power supplies Very efficient
ADVANTAGES Fast switching action PN junction struggle to block reverse current when a high frequency (100kHz) is applied Schottky diodes can handle frequencies well beyond 100kHz Good for high frequency applications such as switch mode power supplies like boost and buck converters Low voltage drop Higher efficiency than regular PN junction diodes Does not generate as much heat as PN junction diodes
DISADVANTAGES Higher reverse leakage current When reverse biased, Schottky diodes allow more current to flow than PN junction diodes which can damage the circuit Generally costs more
